Patents by Inventor Sridharan Ranganathan

Sridharan Ranganathan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9904650
    Abstract: An interface for low power, high bandwidth communications between units in a device in provided herein. The interface comprises a USB 3.0 system interface and a SuperSpeed inter-chip (SSIC) protocol adaptor configured to facilitate communications between the USB3.0 system interface and an M-PHY interface, wherein the SSIC is configured to issue remote register access protocol (RRAP) commands through a local M-PHY to a remote M-PHY in a low speed burst mode.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: February 27, 2018
    Assignee: Intel Corporation
    Inventors: Karthi R. Vadivelu, Sridharan Ranganathan, Anoop Mukker, Satheesh Chellappan
  • Patent number: 9723431
    Abstract: A close proximity wireless connection is initiated between a first device and a second device, and a channel configuration module sends first data over the wireless connection to advertise one or more supported channel configurations of the first device to the second device, and receives second data over the wireless connection. The second data is to advertise one or more supported channel configurations of the second device to the first device. A particular one of a plurality of modes of the first device is determined to be used in communications with the second device over the close proximity wireless connection based on the first and second data.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: August 1, 2017
    Assignee: Intel Corporation
    Inventor: Sridharan Ranganathan
  • Patent number: 9697168
    Abstract: Techniques and mechanisms to provide common interface logic for multiple protocol engines to access physical layer circuitry at different times. In an embodiment, a state machine of an interface device is to participate in exchanges with physical layer resources on behalf of any of various protocol engines coupled to the interface device via different respective interfaces. Based on state transitions by the state machine, circuitry corresponding to a particular one of such interfaces may selectively send a clock signal for operation of a port controller attempting to access the physical layer circuitry. In some embodiments, multiple interface devices are configured to provide an hierarchical interface architecture for more than two port controllers that variously support at least two protocols.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: July 4, 2017
    Assignee: Intel Corporation
    Inventors: Sridharan Ranganathan, Satheesh Chellappan
  • Publication number: 20170176534
    Abstract: Logic controlling a local link interface enables in-band self-testing of the local link interface, the connected link interface of a remote device, and the link connecting the two. Logic configures a loopback in the remote device using an in-band protocol such as MIPI. The loopback may include all the link lanes or only a selected subset. The logic then isolates the local physical layer from upstream components and causes one or more test patterns to be sent through the local link interface and through the link to the loopback. The signals returning to the local link interface from the loopback are collected and compared with the original test patterns by an on-board checker in the link interface. The results, or a metric such as BER derived from the results, can then be accessed without requiring a custom dedicated test port.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Inventors: Satheesh Chellappan, Sridharan Ranganathan
  • Patent number: 9552051
    Abstract: Disclosed herein is a system to minimize power leakage. The system is configured to include a system-on-chip (SOC). The SOC is configured to include a Universal Serial Bus (USB) physical subsystem and system firmware, wherein the system firmware conveys USB related events to the SOC. The system is configured to include a power management apparatus, where the power management apparatus includes USB wake functionality and USB On-the-Go (OTG) functionality.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: January 24, 2017
    Assignee: Intel Corporation
    Inventors: Vinu K. Elias, Sridharan Ranganathan, Paul S. Durley
  • Publication number: 20160283434
    Abstract: Techniques and mechanisms to provide common interface logic for multiple protocol engines to access physical layer circuitry at different times. In an embodiment, a state machine of an interface device is to participate in exchanges with physical layer resources on behalf of any of various protocol engines coupled to the interface device via different respective interfaces. Based on state transitions by the state machine, circuitry corresponding to a particular one of such interfaces may selectively send a clock signal for operation of a port controller attempting to access the physical layer circuitry. In some embodiments, multiple interface devices are configured to provide an hierarchical interface architecture for more than two port controllers that variously support at least two protocols.
    Type: Application
    Filed: March 25, 2015
    Publication date: September 29, 2016
    Inventors: Sridharan Ranganathan, Satheesh Chellappan
  • Patent number: 9405718
    Abstract: An interconnect architecture device of an aspect includes a processor to generate a transaction that is of a different interconnect protocol than LLI. The interconnect architecture device also includes conversion logic coupled with the processor. The conversion logic is to convert the transaction, which is of the different interconnect protocol than LLI, to an LLI packet. The interconnect architecture device also includes an LLI controller coupled with the conversion logic. The LLI controller is to couple the interconnect architecture device with an LLI link. The LLI controller is to transmit the LLI packet on the LLI link.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: August 2, 2016
    Assignee: Intel Corporation
    Inventors: Sridharan Ranganathan, Mahesh Wagh
  • Publication number: 20160183031
    Abstract: A close proximity wireless connection is initiated between a first device and a second device, and a channel configuration module sends first data over the wireless connection to advertise one or more supported channel configurations of the first device to the second device, and receives second data over the wireless connection. The second data is to advertise one or more supported channel configurations of the second device to the first device. A particular one of a plurality of modes of the first device is determined to be used in communications with the second device over the close proximity wireless connection based on the first and second data.
    Type: Application
    Filed: December 18, 2014
    Publication date: June 23, 2016
    Inventor: Sridharan Ranganathan
  • Patent number: 9280510
    Abstract: An interface for low power, high bandwidth communications between units in a device in provided herein. The interface comprises a USB 3.0 system interface and a SuperSpeed inter-chip (SSIC) protocol adaptor configured to facilitate communications between the USB 3.0 system interface and an M-PHY interface.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: March 8, 2016
    Assignee: Intel Corporation
    Inventors: Sridharan Ranganathan, David J. Harriman, Anoop Mukker, Satheesh Chellappan, Karthi R. Vadivelu, Shalini Sharma, Zeeshan Sarwar
  • Publication number: 20150333735
    Abstract: Disclosed herein is a system to minimize power leakage. The system is configured to include a system-on-chip (SOC). The SOC is configured to include a Universal Serial Bus (USB) physical subsystem and system firmware, wherein the system firmware conveys USB related events to the SOC. The system is configured to include a power management apparatus, where the power management apparatus includes USB wake functionality and USB On-the-Go (OTG) functionality.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 19, 2015
    Inventors: VINU K. ELIAS, SRIDHARAN RANGANATHAN, PAUL S. DURLEY
  • Publication number: 20150212969
    Abstract: An interface for low power, high bandwidth communications between units in a device in provided herein. The interface comprises a USB 3.0 system interface and a SuperSpeed inter-chip (SSIC) protocol adaptor configured to facilitate communications between the USB3.0 system interface and an M-PHY interface, wherein the SSIC is configured to issue remote register access protocol (RRAP) commands through a local M-PHY to a remote M-PHY in a low speed burst mode.
    Type: Application
    Filed: April 3, 2015
    Publication date: July 30, 2015
    Applicant: Intel Corporation
    Inventors: Karthi R. Vadivelu, SRIDHARAN RANGANATHAN, ANOOP MUKKER, SATHEESH CHELLAPPAN
  • Patent number: 9092367
    Abstract: An interface for low power, high bandwidth communications between units in a device in provided herein. The interface comprises a USB 3.0 system interface and a SuperSpeed inter-chip (SSIC) protocol adaptor configured to facilitate communications between the USB 3.0 system interface and an M-PHY interface, wherein the SSIC is configured to issue remote register access protocol (RRAP) commands through a local M-PHY to a remote M-PHY in a low speed burst mode.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: July 28, 2015
    Assignee: Intel Corporation
    Inventors: Karthi R. Vadivelu, Sridharan Ranganathan, Anoop Mukker, Satheesh Chellappan
  • Publication number: 20150134866
    Abstract: An interface for low power, high bandwidth communications between units in a device in provided herein. The interface comprises a USB 3.0 system interface and a SuperSpeed inter-chip (SSIC) protocol adaptor configured to facilitate communications between the USB 3.0 system interface and an M-PHY interface.
    Type: Application
    Filed: January 20, 2015
    Publication date: May 14, 2015
    Inventors: Sridharan Ranganathan, David J. Harriman, Anoop Mukker, Satheesh Chellappan, Karthi R. Vadivelu, Shalini Sharma, Zeeshan Sarwar
  • Patent number: 9031064
    Abstract: In one embodiment, a converged protocol stack can be used to unify communications from a first communication protocol to a second communication protocol to provide for data transfer across a physical interconnect. This stack can be incorporated in an apparatus that includes a protocol stack for a first communication protocol including transaction and link layers, and a physical (PHY) unit coupled to the protocol stack to provide communication between the apparatus and a device coupled to the apparatus via a physical link. This PHY unit may include a physical unit circuit according to the second communication protocol. Other embodiments are described and claimed.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: May 12, 2015
    Assignee: Intel Corporation
    Inventors: Sridharan Ranganathan, Mahesh Wagh, David J. Harriman
  • Patent number: 8972646
    Abstract: An interface for low power, high bandwidth communications between units in a device in provided herein. The interface comprises a USB 3.0 system interface and a SuperSpeed inter-chip (SSIC) protocol adaptor configured to facilitate communications between the USB 3.0 system interface and an M-PHY interface.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: March 3, 2015
    Assignee: Intel Corporation
    Inventors: Sridharan Ranganathan, David J. Harriman, Anoop Mukker, Satheesh Chellappan, Karthi R. Vadivelu, Shalini Sharma, Zeeshan Sarwar
  • Publication number: 20140289434
    Abstract: An interconnect architecture device of an aspect includes a processor to generate a transaction that is of a different interconnect protocol than LLI. The interconnect architecture device also includes conversion logic coupled with the processor. The conversion logic is to convert the transaction, which is of the different interconnect protocol than LLI, to an LLI packet. The interconnect architecture device also includes an LLI controller coupled with the conversion logic. The LLI controller is to couple the interconnect architecture device with an LLI link. The LLI controller is to transmit the LLI packet on the LLI link.
    Type: Application
    Filed: February 28, 2013
    Publication date: September 25, 2014
    Inventors: Sridharan Ranganathan, Mahesh Wagh
  • Publication number: 20140173164
    Abstract: In one embodiment, a converged protocol stack can be used to unify communications from a first communication protocol to a second communication protocol to provide for data transfer across a physical interconnect. This stack can be incorporated in an apparatus that includes a protocol stack for a first communication protocol including transaction and link layers, and a physical (PHY) unit coupled to the protocol stack to provide communication between the apparatus and a device coupled to the apparatus via a physical link. This PHY unit may include a physical unit circuit according to the second communication protocol. Other embodiments are described and claimed.
    Type: Application
    Filed: February 21, 2014
    Publication date: June 19, 2014
    Inventors: Sridharan Ranganathan, Mahesh Wagh, David J. Harriman
  • Patent number: 8737390
    Abstract: In one embodiment, a converged protocol stack can be used to unify communications from a first communication protocol to a second communication protocol to provide for data transfer across a physical interconnect. This stack can be incorporated in an apparatus that includes a protocol stack for a first communication protocol including transaction and link layers, and a physical (PHY) unit coupled to the protocol stack to provide communication between the apparatus and a device coupled to the apparatus via a physical link. This PHY unit may include a physical unit circuit according to the second communication protocol. Other embodiments are described and claimed.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: May 27, 2014
    Assignee: Intel Corporation
    Inventors: Sridharan Ranganathan, Mahesh Wagh, David J. Harriman
  • Publication number: 20130318279
    Abstract: In one embodiment, a converged protocol stack can be used to unify communications from a first communication protocol to a second communication protocol to provide for data transfer across a physical interconnect. This stack can be incorporated in an apparatus that includes a protocol stack for a first communication protocol including transaction and link layers, and a physical (PHY) unit coupled to the protocol stack to provide communication between the apparatus and a device coupled to the apparatus via a physical link. This PHY unit may include a physical unit circuit according to the second communication protocol. Other embodiments are described and claimed.
    Type: Application
    Filed: April 25, 2013
    Publication date: November 28, 2013
    Inventors: Sridharan Ranganathan, Mahesh Wagh, David J. Harriman
  • Publication number: 20130297833
    Abstract: An interface for low power, high bandwidth communications between units in a device in provided herein. The interface comprises a USB 3.0 system interface and a SuperSpeed inter-chip (SSIC) protocol adaptor configured to facilitate communications between the USB 3.0 system interface and an M-PHY interface, wherein the SSIC is configured to issue remote register access protocol (RRAP) commands through a local M-PHY to a remote M-PHY in a low speed burst mode.
    Type: Application
    Filed: May 2, 2012
    Publication date: November 7, 2013
    Inventors: Karthi R. Vadivelu, Sridharan Ranganathan, Anoop Mukker, Satheesh Chellappan